Automatic feeder



FIG. 1 is a top, front and right perspective view of an automatic feeder showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures illustrate portions of the automatic feeder that form no part of the claimed design. 

CLAIM The ornamental design for an automatic feeder, as shown and described. 